On Jan 18, 9:54 am, shahid <[email protected]> wrote:
> In my application I always define an inner handler classes
> (implementing a handler interface) for all sorts of events e.g.
> ClickHandler, ValueChangeHandler etc. and then I use them in the main
> (outer) class using NEW handerl(). I could however use the outer class
> to implement the interface itself. I wonder if that would make any
> difference to the application's size and speed:
>
> class A {
>
> class B implements ClickHandler {
>   ..... onClick here ....
>
> }
>
> public void someMethod(){
>   Anchor a = new Anchor("Link");
>   a.addClickHandler(new B());
>
> }
> }
>
> Will doing the following instead make any difference to the generated
> javascript's size and speed:
>
> class A implements ClickHandler {
>  ... implement the onClick ...
>
> ... use addClickHandler(this) elsewhere in methods ....
>
>
>
> }

It would probably make a small difference, but I doubt it'd be
perceptible (even in our beloved sluggish IE6).

Re. maintainability of your code though, you're changing the
"contract" of A, which is now a ClickHandler that "anyone" could
attach to "anything".
(that's the same rationale for using a Composite rather than deriving
an existing widget)
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